annotate src/fftw-3.3.8/api/execute-dft-r2c.c @ 82:d0c2a83c1364

Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam
date Tue, 19 Nov 2019 14:52:55 +0000
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Chris@82 1 /*
Chris@82 2 * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@82 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@82 4 *
Chris@82 5 * This program is free software; you can redistribute it and/or modify
Chris@82 6 * it under the terms of the GNU General Public License as published by
Chris@82 7 * the Free Software Foundation; either version 2 of the License, or
Chris@82 8 * (at your option) any later version.
Chris@82 9 *
Chris@82 10 * This program is distributed in the hope that it will be useful,
Chris@82 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@82 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Chris@82 13 * GNU General Public License for more details.
Chris@82 14 *
Chris@82 15 * You should have received a copy of the GNU General Public License
Chris@82 16 * along with this program; if not, write to the Free Software
Chris@82 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Chris@82 18 *
Chris@82 19 */
Chris@82 20
Chris@82 21 #include "api/api.h"
Chris@82 22 #include "rdft/rdft.h"
Chris@82 23
Chris@82 24 /* guru interface: requires care in alignment, r - i, etcetera. */
Chris@82 25 void X(execute_dft_r2c)(const X(plan) p, R *in, C *out)
Chris@82 26 {
Chris@82 27 plan_rdft2 *pln = (plan_rdft2 *) p->pln;
Chris@82 28 problem_rdft2 *prb = (problem_rdft2 *) p->prb;
Chris@82 29 pln->apply((plan *) pln, in, in + (prb->r1 - prb->r0), out[0], out[0]+1);
Chris@82 30 }